I mostly remember "Abandoned Future" for appearing in a 'Worst Featured Levels in GD' video (alongside the likes of "Ectoplasm"). The video has since been deleted despite garnering a decent amount of views and while I don't think that "Abandoned Future" is one of the worst featured (actually, epic-rated) levels in existence, it's certainly one of the emptiest. "Abandoned Future" is a level so desolate I wouldn't blame you for thinking that it was an 'abandoned' level (Hell, even Serponge of all people joked about this on ViPriN's upload of the level!). I get that it's an effect level and the effects are supposed to be its crown jewel, but it's almost distracting how much of the level is an abyssal vacuum deprived of any substance. The obscene amount of void and blank space that there is within "Abandoned Future" just scream that it is a rushed product, which is bit disappointing because I think it could have been a much better level had Pipenachho put more time and effort into it. The final few seconds of the level is literally an empty mini-wave section with no gameplay whatsoever that exists just to extend the level to a 'Long' length. That's how lazy this level really is! There's no flashy background effects here. There's not even a grand endscreen. It's literally just a lifeless, black void. It ends on this note that pretty much declares 'I ran out of ideas', which is a fine statement on its own. But still, it's not a great excuse for how obviously rushed "Abandoned Future" was.